Tips. 1  Full-grown Chihuahuas generally don't get to be above 6 to 9 inches tall. 2  If yours is taller than that, either as a puppy or an adult, he may be a mixed breed. 3  Don't use color as an indication of your dog's breed, as both short-and long-haired Chihuahuas can come in practically any color. Full-grown Chihuahuas generally don't get to be above 6 to 9 inches tall. 2  If yours is taller than that, either as a puppy or an adult, he may be a mixed breed. 3  Don't use color as an indication of your dog's breed, as both short-and long-haired Chihuahuas can come in practically any color.
Factors Affecting Wave Speed. The speed of any wave depends upon the properties of the medium through which the wave is traveling. Typically there are two essential types of properties that affect wave speed - inertial properties and elastic properties.
The wave velocity in one medium not only may differ from that in another, but the velocity typically varies with wavelength. As a result, the change in direction upon entering a different medium changes with the wavelength of the wave. For electromagnetic waves the speed in a medium is governed by its refractive index according to